date-fns string to date code example

Example 1: c# format string to date yyyymmdd

DateTime dt = DateTime.ParseExact(dateString, "ddMMyyyy", 
                                  CultureInfo.InvariantCulture);
dt.ToString("yyyyMMdd");

Example 2: convert string date to datetime and format

var dateString = "2020-09-25T10:13:21.246321+01:00";
String formattedDateString = DateFormat('do LLLL yyyy').format(DateTime.parse(dateString)); 
// formattedDateString - OUTPUT: "25 September 2020"